HPV DNA has been detected in breast milk, but current evidence shows it does not cause infection in nursing infants. The U.S. Office on Women’s Health states clearly that mothers with HPV can breastfeed their babies. No study to date has linked breastfeeding to HPV transmission from mother to child.
HPV DNA in Breast Milk: What Studies Show
Researchers have found HPV genetic material in breast milk samples, which understandably raises concern. But detecting viral DNA is not the same as finding an active, infectious virus. A longitudinal study published in the Journal of Infectious Diseases looked specifically at whether persistent HPV in breast milk led to oral HPV infections in nursing infants. It found no significant association between HPV in breast milk and new oral HPV infections in the babies.
Interestingly, the same study did find that breast milk HPV was a potential vehicle for transmission to the oral mucosa of the mother’s partner, likely through direct contact during intimacy. But the infant’s exposure through feeding did not produce the same result. The reasons aren’t fully understood, but it may involve differences in immune response, the volume of virus present, or how the infant’s oral mucosa handles exposure.
How Infants Actually Get HPV
When infants do test positive for HPV, the most studied route is vertical transmission during pregnancy or delivery. A study of 333 mother-infant pairs found that newborn HPV positivity was not associated with feeding method, type of delivery, gender, or gestational age. Among 99 mothers who tested positive for HPV DNA, only 3 out of 86 vaginal deliveries showed a matching HPV type between mother and baby. None of the 13 cesarean deliveries in that group showed concordance. Even vaginal delivery, which involves direct contact with potentially infected tissue, did not meaningfully increase the rate of HPV transmission to the newborn.
The condition most commonly associated with childhood HPV transmission is recurrent respiratory papillomatosis (RRP), a rare disorder where wart-like growths develop in the airway. Multiple studies confirm that the most likely route for this is exposure during labor, not through breastfeeding. In rare cases, babies may be exposed in utero. Breast milk has not been identified as a risk factor for RRP.
How HPV Compares to Other Viruses in Breast Milk
Several viruses can be detected in breast milk, including HIV and Epstein-Barr virus. Mother-to-child HIV transmission through breastfeeding is well documented, particularly in regions where exclusive breastfeeding continues for six months or longer without antiviral treatment. This is why HIV-positive mothers in certain settings receive specific guidance about breastfeeding.
HPV behaves very differently. It is not a bloodborne virus that circulates through bodily fluids the way HIV does. HPV infects surface-level skin and mucosal cells, and its presence in breast milk appears to consist of viral DNA fragments rather than intact, infectious particles capable of establishing a new infection. This distinction is important: finding genetic traces of a virus in a fluid does not mean that fluid can transmit disease.
Official Guidelines on Breastfeeding With HPV
U.S. health authorities are unambiguous on this point. The Office on Women’s Health, part of the Department of Health and Human Services, lists HPV alongside chlamydia and gonorrhea as infections that are safe to breastfeed with. There is no recommendation to pump and dump, supplement with formula, or take any special precautions while nursing if you have HPV or genital warts.
HPV Vaccination While Breastfeeding
If you’re nursing and haven’t completed (or started) the HPV vaccine series, you can safely receive it. The CDC and multiple professional health organizations confirm that vaccines given to a nursing mother do not affect breastfeeding safety for either mother or infant. In clinical trials, 500 breastfeeding mothers received the quadrivalent HPV vaccine while 495 received a placebo. A small number of infants in both groups experienced health events like respiratory infections or stomach bugs, but none were considered related to the vaccine. Getting vaccinated while breastfeeding is not a contraindication, and there is no need to interrupt nursing around your vaccine appointments.